On Tue, 2002-07-16 at 18:30, Bruce Momjian wrote:
> Hiroshi Inoue wrote:
> > > Makes sense.  Of course, we could make a syscache that didn't return
> > > system columns either.
> > > 
> > > Actually, the original argument for negative attno's for dropped columns
> > > was exactly for this case, that the system column check would catch
> > > dropped columns too, 
> > 
> > > but it causes other problems that are harder to fix
> > > so we _dropped_ the idea.
> > 
> > What does this mean ?
> 
> Client programmers prefered the dropped flag rather than negative
> attno's so we went with that.

While you are at it,could you add another flag is_system ?

<evil grin>

-----------
Hannu


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